Generating random selection of points by date?

Discussion created by mkj3160 on Jul 8, 2012
Latest reply on Jul 8, 2012 by cpoynter
I have a large dataset where point locations for individual animals are serially autocorrelated (many locations/pts in one day). For each individual animal, I would like to randomly subsample one location from each day for all the days sampled, but haven't found a way to automate the selection. There appear to be tools to generate a random sample my points, but not to stipulate that I want one from each day for each animal.

Any help would be much appreciated.